. Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening; Horticulture; Horticulture; Horticulture. PHYSIOLOGY cutties are directly traceable to over-watering, or "cold feet," the effect of too much water being partially to prevent aeration. Water plants have adapted them- selves to getting oxygen in other ways, and many bog plants send to the surface speci
. Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening; Horticulture; Horticulture; Horticulture. PHYSIOLOGY cutties are directly traceable to over-watering, or "cold feet," the effect of too much water being partially to prevent aeration. Water plants have adapted them- selves to getting oxygen in other ways, and many bog plants send to the surface special roots for aerating purposes. No plant can live without oxygen. In some way or other oxygen must be secured. The more active a plant is, whether in growth or in movement, the more oxygen will it require. Even dry seeds must respire slightly, and in some kinds respiration may be so rapid that after a single season death may ensue. This use of oxygen, whether by the germinating seed or by the growing or assimilating part, is accompanied by the giving off of carbon diOxid, or foul gas. This whole process is respiration; and in its ultimate effects it is similar to respiration in animals. The Sole of Water in the quicker to manifest itself than the action of suffocation by lack of oxygen is the injury which most plants may suffer from an insufSciency of water. The rigidity of an herbaceous or succulent plant is due largely to its water content; and without a substantial degree of this rigidity, growth would cease and life soon become extinct. The plant pulled up by its roots or cut down, wilts almost imme- diately. The wilting of plants, then, is due to a lack or loss of water supply. The way in which the ordinary plant may constantly obtain a quantity of water from the soil is worthy of full discussion. On pulling from the soil a growing plantlet of squash, we find a tap-root and a number ot small rootlets. To the latter cling, perhaps, small par- ticles of the soil,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjec, booksubjectgardening
